<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 */
class LoginForm extends CFormModel
{
	public $username;
	public $password;
	private $_identity;

	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 */
    public function rules()
    {
        return array(
            array('username', 'required','message'=>'用户名必填'),
            array('password','required','message'=>'密码必填'),
            array('password', 'authenticate'),
        );
    }

    public function attributeLabels()
    {
        return array(
            'username'=>'用户名称:',
            'password'=>'用户密码:',
        );
    }

    /**
     * Authenticates the password.
     * This is the 'authenticate' validator as declared in rules().
     */
    public function authenticate($attribute,$params)
    {
        if(!$this->hasErrors())
        {
            $this->_identity = new UserIdentity($this->username,$this->password);
            if(!$this->_identity->authenticate())
                return false;
        }
    }

    public function login()
    {
        if($this->_identity === null)
        {
            $this->_identity =new UserIdentity($this->username,$this->password);
            $this->_identity->authenticate();

        }
        if($this->_identity->errorCode === UserIdentity::ERROR_NONE)
        {

            $duration = '';
            Yii::app()->admin->login($this->_identity,$duration);
            return true;
        }
        else
            return false;
    }
}
